The Narragansett Runestone, also known as the Quidnessett Rock, is a 2.5 tonne slab of metasandstone inscribed with two rows of symbols, which some have indicated resemble ancient Runic characters. (Narragansett Bay, Rhode Island, is described at Wikipedia page .)
The stone was stolen in 2012. On April 26, 2013, the Rhode Island Attorney General announced that the rock was recovered after an individual came forward with information. The rock was moved to the University of Rhode Island School of Oceanography for testing but this proved to be impossible.
In January 2014, the runestone was moved to Goddard Memorial State Park in East Greenwich (United States).
More information on the Wikipedia page .